As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
// SPDX-License-Identifier: BSD-3-Clause
declare(strict_types=1);
namespace SimplePie;
use InvalidArgumentException;
use SimplePie\Content\Type\Sniffer;
use SimplePie\Parse\Date;
use SimplePie\XML\Declaration\Parser as DeclarationParser;
/**
* Handles creating objects and calling methods
*
* Access this via {@see \SimplePie\SimplePie::get_registry()}
*/
class Registry
{
/**
* Default class mapping
*
* Overriding classes *must* subclass these.
*
* @var array<class-string, class-string>
*/
protected $default = [
Cache::class => Cache::class,
Locator::class => Locator::class,
Parser::class => Parser::class,
File::class => File::class,
Sanitize::class => Sanitize::class,
Item::class => Item::class,
Author::class => Author::class,
Category::class => Category::class,
Enclosure::class => Enclosure::class,
Caption::class => Caption::class,
Copyright::class => Copyright::class,
Credit::class => Credit::class,
Rating::class => Rating::class,
Restriction::class => Restriction::class,
Sniffer::class => Sniffer::class,
Source::class => Source::class,
Misc::class => Misc::class,
DeclarationParser::class => DeclarationParser::class,
Date::class => Date::class,
];
/**
* Class mapping
*
* @see register()
* @var array<string, class-string>
*/
protected $classes = [];
/**
* Legacy classes
*
* @see register()
* @var array<class-string>
*/
protected $legacy = [];
/**
* Legacy types
*
* @see register()
* @var array<string, class-string>
*/
private $legacyTypes = [
'Cache' => Cache::class,
'Locator' => Locator::class,
'Parser' => Parser::class,
'File' => File::class,
'Sanitize' => Sanitize::class,
'Item' => Item::class,
'Author' => Author::class,
'Category' => Category::class,
'Enclosure' => Enclosure::class,
'Caption' => Caption::class,
'Copyright' => Copyright::class,
'Credit' => Credit::class,
'Rating' => Rating::class,
'Restriction' => Restriction::class,
'Content_Type_Sniffer' => Sniffer::class,
'Source' => Source::class,
'Misc' => Misc::class,
'XML_Declaration_Parser' => DeclarationParser::class,
'Parse_Date' => Date::class,
];
/**
* Constructor
*
* No-op
*/
public function __construct()
{
}
/**
* Register a class
*
* @param string $type See {@see $default} for names
* @param class-string $class Class name, must subclass the corresponding default
* @param bool $legacy Whether to enable legacy support for this class
* @return bool Successfulness
*/
public function register(string $type, $class, bool $legacy = false)
{
if (array_key_exists($type, $this->legacyTypes)) {
// trigger_error(sprintf('"%s"(): Using argument #1 ($type) with value "%s" is deprecated since SimplePie 1.8.0, use class-string "%s" instead.', __METHOD__, $type, $this->legacyTypes[$type]), \E_USER_DEPRECATED);
$type = $this->legacyTypes[$type];
}
if (!array_key_exists($type, $this->default)) {
return false;
}
if (!class_exists($class)) {
return false;
}
/** @var string */
$base_class = $this->default[$type];
if (!is_subclass_of($class, $base_class)) {
return false;
}
$this->classes[$type] = $class;
if ($legacy) {
$this->legacy[] = $class;
}
return true;
}
/**
* Get the class registered for a type
*
* Where possible, use {@see create()} or {@see call()} instead
*
* @template T
* @param class-string<T> $type
* @return class-string<T>|null
*/
public function get_class($type)
{
if (array_key_exists($type, $this->legacyTypes)) {
// trigger_error(sprintf('"%s"(): Using argument #1 ($type) with value "%s" is deprecated since SimplePie 1.8.0, use class-string "%s" instead.', __METHOD__, $type, $this->legacyTypes[$type]), \E_USER_DEPRECATED);
$type = $this->legacyTypes[$type];
}
if (!array_key_exists($type, $this->default)) {
return null;
}
// For PHPStan: values in $default should be subtypes of keys.
/** @var class-string<T> */
$class = $this->default[$type];
if (array_key_exists($type, $this->classes)) {
// For PHPStan: values in $classes should be subtypes of keys.
/** @var class-string<T> */
$class = $this->classes[$type];
}
return $class;
}
/**
* Create a new instance of a given type
*
* @template T class-string $type
* @param class-string<T> $type
* @param array<mixed> $parameters Parameters to pass to the constructor
* @return T Instance of class
*/
public function &create($type, array $parameters = [])
{
$class = $this->get_class($type);
if ($class === null) {
throw new InvalidArgumentException(sprintf(
'%s(): Argument #1 ($type) "%s" not found in class list.',
__METHOD__,
$type
), 1);
}
if (!method_exists($class, '__construct')) {
$instance = new $class();
} else {
$reflector = new \ReflectionClass($class);
// For PHPStan: $class is T.
/** @var T */
$instance = $reflector->newInstanceArgs($parameters);
}
if ($instance instanceof RegistryAware) {
$instance->set_registry($this);
} elseif (method_exists($instance, 'set_registry')) {
trigger_error(sprintf('Using the method "set_registry()" without implementing "%s" is deprecated since SimplePie 1.8.0, implement "%s" in "%s".', RegistryAware::class, RegistryAware::class, $class), \E_USER_DEPRECATED);
$instance->set_registry($this);
}
return $instance;
}
/**
* Call a static method for a type
*
* @param class-string $type
* @param string $method
* @param array<mixed> $parameters
* @return mixed
*/
public function &call($type, string $method, array $parameters = [])
{
$class = $this->get_class($type);
if ($class === null) {
throw new InvalidArgumentException(sprintf(
'%s(): Argument #1 ($type) "%s" not found in class list.',
__METHOD__,
$type
), 1);
}
if (in_array($class, $this->legacy)) {
switch ($type) {
case Cache::class:
// For backwards compatibility with old non-static
// Cache::create() methods in PHP < 8.0.
// No longer supported as of PHP 8.0.
if ($method === 'get_handler') {
// Fixing this PHPStan error breaks CacheTest::testDirectOverrideLegacy()
/** @phpstan-ignore argument.type */
$result = @call_user_func_array([$class, 'create'], $parameters);
return $result;
}
break;
}
}
$callable = [$class, $method];
assert(is_callable($callable), 'For PHPstan');
$result = call_user_func_array($callable, $parameters);
return $result;
}
}
class_alias('SimplePie\Registry', 'SimplePie_Registry');